A204024 - cp's OEIS frontend

A204024 Array: row n shows the coefficients of the characteristic polynomial of the n-th principal submatrix of min(i(i+1)/2, j(j+1)/2) (A106255).

n	a(n)
1	1
2	-1
3	2
4	-4
5	1
6	6
7	-16
8	10
9	-1
10	24
11	-76
12	70
13	-20
14	1
15	120
16	-428
17	496
18	-224
19	35
20	-1
21	720
22	-2808
23	3808
24	-2260
25	588
26	-56
27	1
28	5040
29	-21096
30	32152
31	-23008
32	8140
33	-1344
34	84
35	-1
36	40320
37	-178848
38	298688
39	-245560
40	107328
41	-24772
42	2772

[1, -1, 2, -4, 1, 6, -16, 10, -1, 24, -76, 70, -20, 1, 120, -428, 496, -224, 35, -1, 720, -2808, 3808, -2260, 588, -56, 1, 5040, -21096, 32152, -23008, 8140, -1344, 84, -1, 40320, -178848, 298688, -245560, 107328, -24772, 2772]

cp's OEIS Frontend

A204024 Array: row n shows the coefficients of the characteristic polynomial of the n-th principal submatrix of min(i(i+1)/2, j(j+1)/2) (A106255).

Table of values

List of values